Improvement in bedstead-springs



UNITED STATES ELIJAH F. DUNAWAY, OF CINCINNATI, OHIO.

IMPROVEMENT IN BEDSTEADV-SPRINGS.

Specicationgforming part of Letters Patent No. 118,352, dated August 22, 1871.

To all whom @t may concer-n:

Beit known that I, ELIJAH F. DUNAWAY, of Cincinnati, Hamilton county, State ot' Ohio, have invented a certain nevir and useful Improvement in Bedstead-Springs, of which the following is a specification My invention consists in a peculiar device for connecting the lower sl at with the bed-rails, 'which permits the slat or slats to assume a curved shape in springing Wit-hout creating a creakin g noise at the junction with the rails. It also consists in the employment of a prop of peculiar form for separating the slat of the spring, which will give the necessary stiffness and facilitate the separation of the slats for reversal after they have become set in use.

Figure 1 is a perspective vieW of the spring detached from its supports and bed-rails. Fig. 2 is a cross-section of the bedst-ead with the springs in place. Fig. 3 exhibits a modification in the construction ofthe spring. Fig. 4 is a cross-section ot' the bedstead, showing the vibrating' action of the spring-supports. Fig. 5 is a detached perspective view of one of the props which separate the slats. Fig. 6 is a perspective view of one of the vibrating supports which connect the lower slat with the bed-rails.

A A are the side rails of the bedstead, and B the strips Which support the springs. O are the vibrating supports which connect the springs with the bed-rails. They rest in grooves or i11- dentations in the strips B, and connect, by pins (Fig. 4) or otherwise, With the ends of the slat D. In some cases the slats may rest upon the supports C only, and have no fastening. My improved spring is formed by the combination of slats D and E, firmly connected together by props F and bolts G, the lower one resting upon the supports O and the upper one being free to vibrate in use at the ends. The props F contain a semicylindrical recess to partly embrace the bolts, and have projecting studs at each end to enter holes in the slats to steady them. By simply loosening the nut on the bolt, so that the studs at one end can be Withdrawn out of the slat, the props can be readily removed,

In the action of this spring the part near the rails A A possesses as much range of elasticity as the center of the spring, and no part or' either slat is forced by any ordinary pressure beyond the natural limit of elasticity. As the spring is forced down the supports C move at the top inward, vibrating on their lower ends, thus preventing any creakin g noise.

The creaking in ordinary bedsteads is occasioned by the dragging of the slat ends over the parts of the bed-rails on which they rest as the slat is deflected or retracted. Additional slats, E', may be connected to the spring Where a greater range of elasticity is desirable.

Leather strips maybe fastened on the bedsteadrails to prevent the displacement ofthe springs, the same being shown on the drawing and designated by H.

The slats are connected by screW-fastenings, so that they can be taken apart and reversed at'- ter they have become permanently set.

I claiml. The combination ofthe slats D E, props F, and bolts G, to form an improved bedstead-sprin g, substantially as described.

2. In combination with the bed-rails and slat D, the vibrating supports C, as described, and for the purpose specified.

In testimony of Which invention I hereunto set my hand.

ELIJAH F. DUNAVVAY.

Witnesses:

FRANK MTLLWARD, J. L. VARTMANN. 

